IPC Subgroup
C01B 17/48 Sulfur dioxide; Sulfurous acid
Introduced: September 1968
Last revised: January 2006
Full Title
Sulfur; Compounds thereof > Sulfur dioxide; Sulfurous acid
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
Related Keywords
SULFUROUS acid; sulfur dioxide
1 direct subcode
Child Classifications
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- C01B 17/5 Preparation of sulfur dioxide